动态载荷激励位置识别技术研究

PDF(1234 KB)

振动与冲击 ›› 2012, Vol. 31 ›› Issue (1) : 20-23,4.

论文

动态载荷激励位置识别技术研究

祝德春; 张方; 姜金辉

作者信息 +

Research of identification technology of dynamic load location

ZHU De-chun； ZHANG Fang；JIANG Jin-hui

Author information +

文章历史 +

摘要

以简支梁为研究对象，提出了一种动态载荷激励位置识别的“最小判定系数法”。预估载荷虚拟激励位置，择优选取两组加速度响应并在频域内识别虚拟激励位置处的两组当量动载荷，令其差值为最优化目标变量，则最小目标变量对应的一组虚拟激励位置即为载荷真实激励位置。仿真和实验结果表明该方法正确、可行。

Abstract

Used a simply supported beam as the research object, proposed a dynamic load location identification method of "Law of the minimum coefficient of determination". Forecasted the virtual location of the load, two equivalent dynamic loads of virtual location were identified based on two groups of seclecting acceleration responses in the frequency domain. Ordered the difference of the two to be an optimal target variable, the virtual position that the target variable corresponding to is the real loading position. Simulation and experimental results show that the method is correct and feasible.

导出引用

祝德春;张方;姜金辉. 动态载荷激励位置识别技术研究[J]. 振动与冲击, 2012, 31(1): 20-23,4

ZHU De-chun;ZHANG Fang;JIANG Jin-hui. Research of identification technology of dynamic load location[J]. Journal of Vibration and Shock, 2012, 31(1): 20-23,4